How many light-day in 1 zettameter?
The answer is 38606955.462749.
We assume you are converting between light day and zettametre.
You can view more details on each measurement unit: light-day or
zettameter
The SI base unit for length is the metre.
1 metre is equal to 3.8606955462749E-14 light-day, or 1.0E-21 zettameter.
Note that rounding errors may occur, so always check the results.
Use this page to learn how to convert between light days and zettameters.
Type in your own numbers in the form to convert the units!

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You can do the reverse unit conversion from
zettameter to light-day, or enter any two units below:

A light day (also written light-day) is a unit of length. It is defined as the distance light travels in an absolute vacuum in one day (of 86,400 seconds) or 25,902,068,371,200 metres (~26 Tm).

Note that this value is exact, since the metre is actually defined in terms of the speed of light. The light day isn't very frequently used at all since there are few astronomical objects or distances of that magnitude; the Oort cloud, for example, is thought to extend between 290 and 580 light-days out from the Sun.

››Definition: Zettametre

The SI prefix "zetta" represents a factor of
10^{21}, or in exponential notation, 1E21.

So 1 zettametre = 10^{21} metre.

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